What Major Cultural Difference Did Katherine Dettwyler Notice Between Mali

What major cultural difference did Katherine Dettwyler notice between Mali and the U.S. in their treatment of Down's syndrome children?

A) in Mali there us a significantly lower rate of Down's syndrome births
B) in the US children do not receive treatment for Down's syndrome
C) in Mali the child was treated as if she were very much like any other child
D) in Mali the child was treated as if she were a religious figure